Optical coherence tomography-based ophthalmic testing methods, devices and systems

Patent metadata

Field	Value
Publication number	US-10165941-B2
Application number	US-201615349970-A
Country	US
Kind code	B2
Filing date	Nov 11, 2016
Priority date	Mar 27, 2008
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data.

First claim

What is claimed is:

1. An optical coherence tomography instrument comprising:
an eyepiece for receiving at least one eye of a user;
at least one target display visible through said eyepiece;
a light source that outputs light that is directed through the eyepiece to the user's eye;
an interferometer configured to produce optical interference using light reflected from the user's eye;
an optical detector disposed so as to detect said optical interference; and
electronics coupled to the target display and said detector and configured to provide an output based on optical coherence tomography measurements obtained using said interferometer,
wherein said electronics are further configured to produce features on said target display of varying size and receive user responses to test the user's visual acuity, and
wherein the optical coherence tomography instrument is configured to allow the user to self-administer the visual acuity test.

2. The optical coherence tomography instrument of claim 1 , further comprising a voice recognition interface to receive user responses.

3. The optical coherence tomography instrument of claim 1 , further comprising a keypad to receive user responses.

4. The optical coherence tomography instrument of claim 1 , further comprising a toggle to receive user responses.

5. The optical coherence tomography instrument of claim 1 , further comprising a button to receive user responses.

6. The optical coherence tomography instrument of claim 1 , further comprising a touch pad to receive user responses.

7. The optical coherence tomography instrument of claim 1 , further comprising a touch sensor to receive user responses.

8. The optical coherence tomography instrument of claim 1 , further comprising a foot pedal to receive user responses.

9. The optical coherence tomography instrument of claim 1 , further comprising a knob to receive user responses.

10. The optical coherence tomography instrument of claim 1 , further comprising a rotating handle to receive user responses.

11. The optical coherence tomography instrument of claim 1 , further comprising a microphone to receive user responses.

12. The optical coherence tomography instrument of claim 1 , wherein the detector comprises a CCD or CMOS detector array and the electronics comprises a microprocessor.

13. The optical coherence tomography instrument of claim 1 , wherein the electronics are configured to test the user's visual acuity in both eyes simultaneously.

14. The optical coherence tomography instrument of claim 1 , wherein the electronics are configured to test the user's visual acuity in one eye at a time.

15. The optical coherence tomography instrument of claim 1 , wherein the electronics are configured to perform an assessment of visual acuity and output the assessment of visual acuity through an output device.

16. The optical coherence tomography instrument of claim 15 , wherein the output device comprises a printer or a display.

17. The optical coherence tomography instrument of claim 1 , wherein the at least one target display comprises a first target display and a second target display.

18. The optical coherence tomography instrument of claim 1 , further comprising a fixation marker control system configured to display a fixation marker visible by the user.

19. The optical coherence tomography instrument of claim 18 , wherein the fixation marker can be configured to move.

Assignees

• Doheny Eye Inst

Inventors

• Walsh Alexander C
• Updike Paul G
• Sadda Srinivas R

Classifications

• G02C7/027

  considering wearer's parameters · CPC title

• A61B3/0041

  characterised by display arrangements · CPC title

• A61B3/028

  for testing visual acuity; for determination of refraction, e.g. phoropters · CPC title

• A61B3/085

  for testing strabismus · CPC title

• A61B3/117

  for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes · CPC title